The version of the Cuda driver and runtime may be different, but you should have
a valid version. If not, you probably need to install the NVidia drivers for
your card, as often default video drivers are not compatible with Cuda. You will
find the latest NVidia drivers here: http://www.nvidia.com/Download/index.aspx

6.1.2. I have a Windows laptop with an AMD discrete card, but the main windows doesn’t show¶

You need to check if the discrete card has been triggered. For example, if you
see something like:

Then it’s your onboard Intel card that is selected. And as of today (July 2015),
no Intel card is capable of running LithoGraphX. You need to tell the drivers of
your graphics card to use the discrete card.

6.1.3. I have a Linux laptop with an NVidia card and LithoGraphX doesn’t start¶

Modern laptops with NVidia cards usually have a primary, low-consumption card.
To use your NVidia card, you need to have either bumblebee or nvidia-prime
installed (depending on how recent your Linux distribution is). If you installed
nvidia-prime, make sure the nvidia card is selected. In a shell the command:

$ prime-select query

should return nvidia. If not, type:

$ sudo prime-select nvidia

If you installed bumblebee, you should have a program called optirun or
primusrun (or both). LithoGraphX should detect automatically which one needs to
be used. To make sure your installation is working run the following command in
a shell:

6.1.4. I installed LithoGraphX from source and I get an error related to libgcc_s.so.1¶

The precise error should be:

libgcc_s.so.1mustbeinstalledforpthread_canceltowork

We found this error can occur if you have g++ 4 and g++ 5 installed on your
system (the minor version doesn’t matter). The reason for this error is a change
in the code generated by g++ 5 which leads to libggc_s.so.1 being
different. To solve this problem, make sure all libraries are either compiled
with the same version of g++ than LithoGraphX, or at least that you use the
compatibility flag for g++ 5 (see https://gcc.gnu.org/gcc-5/changes.html#libstdcxx).
Note that we haven’t tried compiling with the compatibility flag, so if you do this,
please report on your success.